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Análisis de polimorfismos en genes candidatos a la calidad de la carne en el ganado vacuno de Lidia
No full text[EN] The aim of this paper was to analyze the segregation of some polymorphisms in three genes (CAPN1, CAST and DGAT1) re-lated to meat quality in the Lidia cattle breed and some of its main lineages. To that effect, 119 individuals from the Lidia breed were analyzed. Although the association between the polymorphisms and the phenotype has never been demonstrated in this breed, the absence of fixed genotypes for these polymorphisms in the studied population makes the Lidia cattle a good candidate to de-velop selection objectives. The clear differentiation among lineagesfor most of the genes studied reinforces the high reproductive isolation presented in the Lidia cattle as revealed by previous studies on the structure of the population within the Lidia breed using microsatellite markers. Considering both issues in the design of breeding schemes will be necessary to save the lineages and not to lose this valuable genetic resource. Finally, it would be necessary to carry out an in depth search for new polymorphisms in genes associated with meat quality and to perform needed association analyses between the SNPs segregating in Lidia cattle and traits of economic interest.SIWe acknowledge the collaboration of the Lidia Cattle Breed Association (AEGRB
The Julio-Claudian Provincial Coinage Production in Africa Proconsularis
Get PDF[ES] El objetivo del presente trabajo es analizar los distintos aspectos financieros de las acuñaciones emitidas por las diversas cecas africanas que estuvieron en actividad en época de acuñación provincial. Para lograr este objetivo, se presenta un estudio de la producción moneta- ria de estos centros emisores. Así, en una primera parte, se relacionan los volúmenes de emisión por centro y por época de fabricación y, en una segunda parte, se consideran los volúmenes de acuñación por valor mone- tario. El detenido análisis y cotejo de estos datos con la información corres- pondiente a otros fenómenos de acuñación monetaria provincial coetánea, ha permitido que, en una tercera parte del trabajo, se plantee una apro- ximación acerca de las posibles intenciones financieras de las que pudie- ron disponer las emisiones provinciales africanas, sin obviar que aquéllas pudieron además obedecer a otras múltiples funciones no exclusivamente económicas.SIUniversidad de GranadaUniversidad de LeicesterAshmolean Museu
Subjective Well-Being and Bullying Victimisation: A Cross-National Study of Adolescents in 64 Countries and Economies
Get PDF[EN] Bullying is a recognised serious public problem affecting many students worldwide. Despite the well-established empirical evidence for the negative consequences of bullying on adolescents’ mental and physical health and educational outcomes, little is known about the link between bullying victimisation and adolescents’ subjective well-being. Moreover, empirical studies using comparative large-scale survey data are particularly scarce. This study explores this question using nationally-representative data from 329,015 adolescents across 64 high and middle-income countries and economies from the 2018 PISA survey. Two measures of subjective well-being were considered: overall life satisfaction and positive affect. Multilevel regressions were estimated at three levels (student, school, and country). Results showed that bullying victimisation was negatively and significantly related to overall life satisfaction and positive affect after controlling for a wide set of factors affecting subjective well-being. Moreover, this negative relationship was more pronounced for top performing students. Locally adapted intervention programmes are needed to tackle the issue of school bullying and foster positive school climate and student well-being. Practical and policy implications are discussed in detailSIIoannis Katsantonis is supported by the Alexander S. Onassis Foundation (scholarship ID: F ZR024/1-2021/2022) and the A.G. Leventis Foundation
Serguei Ldta: a symbol of trans identity in contemporary Colombian art
Get PDF[ES] Este artículo analiza el impacto de la identidad transgénero en el proyecto Serguei Ltda de Andrea Barragán, destacándola como un símbolo potente para cuestionar la heteronormatividad dominante en el contexto mundial y en este caso específico colombiano, que reduce la identidaad al sexo biológico. Utilizando la metodología feminista en historia del arte, se examina cómo la construcción iconográfica basada en la estética drag king en su obra desestabiliza y resignifica imaginarios hegemónicos, liberando al género de su obligatoriedad. Los hallazgos evidencian cómo el arte atravesado por la perspectiva de género promueve debates sobre diversidad y transformación social. En conclusión, la obra de Barragán contribuye a comprender el género como una construcción fluida y transgresora.[EN] This article analyzes the impact of transgender identity in Andrea Barragán's Serguei Ltda project, highlighting it as a powerful symbol for questioning dominant heteronormativity in the global context and, specifically, in Colombia, where identity is often reduced to biological sex. Using feminist methodology in art history, the study examines how the iconographic construction based on drag king aesthetics in her work destabilizes and redefines hegemonic imaginaries, freeing gender from its imposed obligations. The findings demonstrate how art, when viewed through a gender perspective, fosters debates on diversity and social transformation. In conclusion, Barragán’s work contributes to understanding gender as a fluid and transgressive construction
Abolitionist Feminism as a reaction to Postfeminism: the neoliberal reinvention of patriarchy in a fifty-year chronology
Get PDF[S] Este artículo aborda el proceso de suplantación de los planteamientos históricos feministas por un postfeminismo neoliberal en sociedades formalmente igualitarias, junto con la respuesta del feminismo abolicionista a este fenómeno. El objetivo de esta investigación es contextualizar el postfeminismo como una sofisticada reinvención del patriarcado que actúa como una tecnología de gubernamentabilidad del eje patriarcado-capital. Como metodología, se ha utilizado la hermenéutica filosófica crítica y la perspectiva de género con una mirada interdisciplinar a las ciencias sociales y los estudios culturales. Los resultados del análisis muestran que el postfeminismo legitima las industrias de explotación sexual mediante conceptos como “transgresión” y “libre elección”, concluyendo que el auge del abolicionismo representa una respuesta repolitizada a esta nueva realidad.[EN] The fourth wave of feminism faces a strong blacklash in the digital space, where communities like wives or ‘traditional wives’ have emerged, advocating for the return to old gender roles. This article analyses the phenomenon through media coverage of influencer RoRo Bueno, the first Spanish personality linked to this movement. Using the Critical Discourse Analysis method, two opposing perspectives are identified: those who criticize her as a setback for gender equality and those who defend her, arguing for women’s freedom of choice. The polarization of media discourse highlights the social clash between feminist advancements and the conservative response
Influencer marketing in luxury fashion. Psychological and financial impact on consumers
Get PDF[ES] Las redes sociales han revolucionado el sector de la moda de lujo, convirtiéndose en canales clave para la comunicación entre marcas y consumidores. En este contexto, el marketing de influencia ha adquirido una gran relevancia, ya que permite a las firmas de lujo conectar emocionalmente con sus audiencias a través de personas influyentes que representan estilos de vida aspiracionales. Este trabajo tiene como objetivo analizar las consecuencias que puede generar esta estrategia en el bienestar emocional y financiero de los usuarios expuestos al contenido de moda lujo en plataformas digitales. Con este fin, se establece un marco teórico que recoge los conceptos fundamentales de la moda de lujo, la psicología del consumidor y el marketing de influencia. Posteriormente, se ha desarrollado un estudio empírico orientado a explorar las percepciones, emociones y comportamientos asociados al consumo de este tipo de contenido.[EN] Social media has revolutioned the luxury fashion sector, becoming key channels for communication between brands and consumers. In this context, influencer marketing has gained great relevance, as it allows luxury brands to emotionally connect with their audiences through influential figures who represent aspirational lifestyles. This project aims to analyze the potential consequences that this strategy may have on the emotional and financial well-being of users exposed to fashion luxury content on digital platforms. To this end, a theoretical framework is established, covering the fundamental concepts of luxury fashion, consumer psychology, and influencer marketing. Later, an empirical study has been developed to explore the perceptions, emotions, and behaviors associated with the consumption on this type of content
Role of endogenous opioids on PRL and cortisol secretion in ewes submitted or not to shearing stress
Get PDF[EN] In order to observe the pattern of plasma PRL and cortisol concentrations, after treatment with naloxone and β-endorphin, 9 blood samples were taken from 30 Sarda breed ewes with different levels of stressat 15 minute intervals. Three trials were conducted, each using 10 subjects. In the first two trials, after the second sampling, 5 animals received naloxone (1 mg/kg b.w.) while the others were used as controls. In the third trial, after the second sampling, 5 animals were given 250 mg/head β-endorphin and after the fifth sampling all ten subjects received naloxone in the dose stated above. In the second and third trials the animals were sheared after drug administration. In the first trial, naloxone produced an increase in cortisol (P<0.01) and a decrease in
PRL(P<0.01). In the second and third trials an increase in PRL and cortisol levels was observed at the beginning of shearing (P<0.01), which was unaffected by β-endorphin and naloxone administration. The results show that during stress opiods do not affect hormonal secretion but are involved in modulating perception of pai
Working in the cloud --- without a net. Precariousness and regulation of work on digital platforms
Get PDF[ES] Este Trabajo de Fin de Grado analiza en profundidad el fenómeno que ha supuesto en las últimas décadas el trabajo en plataformas digitales, una modalidad laboral en crecimiento acelerado que, sin duda, ha transformado las dinámicas tradicionales del mercado laboral. A través de un enfoque global, se estudia su origen, evolución, tipologías, impacto y principales retos a nivel social, jurídico y económico. El trabajo presta especial atención a las iniciativas regulatorias impulsadas por organismos internacionales como la Organización Internacional del Trabajo, así como la reciente Directiva 2024/2831 de la Unión Europea, que establece un marco legal armonizador para los Estados miembros en cuanto a protección laboral y gestión algorítmica. El trabajo concluye con un análisis comparativo de la legislación chilena, la Ley N.º 21.341, con la legislación española, el Real Decreto-ley 9/2021 conocida comúnmente como Ley Rider. Con la finalidad de poner en contexto y analizar dos legislaciones orientadas hacia un propósito común; la regulación del trabajo en plataformas digitales, en particular, la posición laboral de los repartidores.[EN] This Final Degree Project analyzes in depth the phenomenon of working on digital platforms in the last decades, a labor modality in accelerated growth that has undoubtedly transformed the traditional dynamics of the labor market. Through a global approach, its origin, evolution, typologies, impact and main social, legal and economic challenges are studied. The paper pays special attention to the regulatory initiatives promoted by international organizations such as the International Labor Organization, as well as the recent European Union Directive 2024/2831, which establishes a harmonizing legal framework for Member States in terms of labor protection and algorithmic management. The paper concludes with a comparative analysis of the Chilean legislation Law N. º 21.341, with the Spanish legislation, Royal Decree-Law 9/2021 commonly known as the Rider Law. With the objective to put into context and analyze two legislations oriented towards a common purpose; the regulation of work in digital platforms, particularly the labor position of delivery drivers
Digital marketing and its impact on the literary industry. The case of Booktok
Get PDF[ES] En la era de la digitalización, las redes sociales han transformado las estrategias de marketing literario. En particular, BookTok, la comunidad de lectores de TikTok, ha adquirido gran popularidad por su capacidad de viralizar obras y modificar los hábitos de consumo. El objetivo general de este trabajo es analizar la influencia del marketing digital en la industria literaria, con un enfoque en BookTok. Para ello, se realizó una investigación exhaustiva del estado del arte, abarcando la evolución del marketing tradicional al marketing digital, el surgimiento de BookTok y el papel de los influencers literarios. El estudio se complementó con una encuesta que proporcionó datos relevantes para comprender el alcance del fenómeno estudiado. Los resultados revelaron que, aunque muy pocos encuestados utilizan BookTok, las compras impulsivas tras ver reseñas habladas son significativamente altas. Además, la mayoría de los usuarios tiene entre 18 y 34 años y valora las reseñas en video por su brevedad y uso del lenguaje no verbal. Del análisis también se determina la autopublicación como un modelo emergente que prescinde de intermediarios y ofrece mayores márgenes a los autores. Como resultado, se presenta un repertorio de estrategias, tanto orgánicas como de pago, para que editoriales y escritores independientes integran BookTok en sus campañas de marketing digital.[EN] In the era of digitalization, social media has transformed literary marketing strategies. In particular, BookTok, TikTok’s reading community, has gained significant popularity due to its ability to make books go viral and alter consumption habits. The general objective of this study is to analyze the influence of digital marketing on the literary industry, with a focus on BookTok. To achieve this, an exhaustive investigation of the state of the art was conducted, covering the evolution from traditional marketing to digital marketing, the emergence of BookTok, and the role of literary influencers. The study was complemented by a survey that provided relevant data to understand the scope of the phenomenon. The results revealed that, although vert few respondents use BookTok, impulsive purchases after watching spoken reviews are significantly high. Furthermore, most of the users are between 18 and 34 years old and value video reviews for their shortness and use of non-verbal language. The analysis also identifies self-publishing as an emerging model that avoid intermediaries and offers higher margins to authors. As a result, a repertoire of strategies, both organic and paid, is presented for publishers and independent writers to integrate BookTok into their digital marketing strategies
Produzione artigianale di formaggio pecorino sardo : osservazioni tecnico-legislative sulle garanzie igienico sanitarie per il consumatore
Get PDF[IT] gli AA hanno effettuato una valutazione sugli aspetti legislativi e tecnici in relazione ad un caso riguardante una azienda di produzione di latte ovino con annessa lavorazione artigianale e vendita diretta al consumatore, in cui si sono verificati ripetuti episodi di alterazione delle produzioni, con perdite economiche rilevanti. E’ stata svolta un’indagine sullo stato clinico-sanitario delle pecore e sugli aspetti igienico - sanitari della lavorazione, attraverso prelievo di campioni per esami batteriologici su latte, prodotti
finiti e semilavorati, oltre alla ricerca di cause di inquinamento ambientale tramite tamponi. E’ stata individuata la causa del problema in una contaminazione da E. coli dell’acqua di lavorazione. Viene descritta l’azione correttiva intrapresa, le procedure di sanificazione adottate e la rimozione delle cause di contaminazione.
Gli AA si soffermano su considerazioni di carattere legislativo, sottolineando le deroghe alle Direttive Comunitarie (Dir. CEE 92/46) di cui godono queste piccole aziende, che sono spesso scarsamente controllate solo perché autorizzate soltanto alla vendita diretta. Viene evidenziato il rischio per il consumatore, che tende ad avere più fiducia nel prodotto artigianale che in quello industriale, ricordando che le produzioni artigianali in questione, soprattutto in alcune aree, sono decisamente non trascurabili in termini
quantitativi e destinate a un vasto mercato di consumator